CVE-2026-107887 Details
Description
The Advanced Twenty Seventeen WordPress plugin through 1.3.1 does not perform any capability or nonce check on the action that creates and activates its bundled child , allowing any authenticated user such as a subscriber to switch the site's active site-wide, and allowing the same action to be triggered against any logged-in user including an administrator via CSRF.
A vulnerability exists in the Advanced Twenty Seventeen WordPress plugin, affecting versions through 1.3.1. The issue arises because the plugin does not implement proper capability or nonce checks on the action that creates and activates its bundled child theme. This oversight allows any authenticated user, including subscribers, to change the site's active theme globally. Additionally, this action can be performed on behalf of any logged-in user, such as an administrator, through cross-site request forgery (CSRF).
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 24, 2026CISA-ADP
Assessed Oct 24, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/e252c7ee-368d-4bfb-a964-06804747c162/ | [email protected] | AdvisoryExploitPartial Content |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Advanced Twenty Seventeen | <= 1.3.1 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 24, 2026 | CVE Modified | CISA-ADP |
| Oct 24, 2026 | New CVE Received | [email protected] |